package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 删除菜品缓存数据方法
     * @param pattern
     */
    private void cleanCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }

    /**
     * 新增菜品(同时保存口味)
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result saveWithFlavor(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品：{}",dishDTO);
        dishService.saveWithFlavor(dishDTO);

        //清理对应类型菜品的缓存数据
        String key = "dish::" + dishDTO.getCategoryId();
        cleanCache(key);

        return Result.success();
    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> pageQuery(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询：{}",dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 批量删除菜品
     * @return
     */
    @DeleteMapping
    @ApiOperation("批量删除菜品")
    public Result deleteBatch(@RequestParam List<Long> ids) {
        log.info("批量删除菜品,ids：{}",ids);
        dishService.deleteBatch(ids);

        //将所有的菜品缓存数据清理掉(以dish::开头的key)
        cleanCache("dish::*");

        return Result.success();
    }


    /**
     * 根据菜品id查询菜品及相关口味(用于回显)
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getByIdWithFlavor(@PathVariable Long id) {
        log.info("根据菜品id {} 查询菜品及口味",id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品及口味
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result updateByIdWithFlavor(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品：{}",dishDTO);
        dishService.updateByIdWithFlavor(dishDTO);

        //将所有的菜品缓存数据清理掉(以dish::开头的key)
        cleanCache("dish::*");

        return Result.success();
    }

    /**
     * 根据分类id查询菜品(用于新增套餐时选择菜品)
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> getByCategoryId(Long categoryId, String name) {
        log.info("根据分类id查询菜品：{},关键词：{}",categoryId, name);
        List<Dish> dishes = dishService.getByCategoryId(categoryId, name);
        return Result.success(dishes);
    }

    /**
     * 菜品起售、停售
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售、停售")
    public Result startOrStop(@PathVariable Integer status, Long id) {
        log.info("id为 {} 的菜品状态改为 {}", id, status);
        dishService.startOrStop(status, id);

        //将所有的菜品缓存数据清理掉(以dish::开头的key)
        cleanCache("dish::*");

        return Result.success();
    }

}
